/Engine/Source/Runtime/Renderer/Public/ScreenPass.h
Change of basis for texture coordinate.
static [FScreenTransform](API\Runtime\Renderer\FScreenTransform) ChangeTextureBasisFromTo ( const FIntPoint & TextureExtent, const FIntRect & TextureViewport, [ETextureBasis](API\Runtime\Renderer\FScreenTransform\ETextureBasis) SrcBasis, [ETextureBasis](API\Runtime\Renderer\FScreenTransform\ETextureBasis) DestBasis )